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ShapeUpAmerica.com is for informational purposes only. The calculators and tools provided are not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions regarding a medical condition.

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CalculatorsNutrition & DietProtein Intake Calculator
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Protein Intake Calculator

Calculate daily protein needs for your activity level.

Biometric Inputs

Real-time clinical computation active

Awaiting Data
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Enter biometric metrics to generate report

This assessment provides statistical probability and mathematical interpretation based on validated clinical equations. It is not a diagnostic tool.

Scientific Context

Determine the optimal amount of protein to consume daily to support muscle maintenance, growth, and recovery.

Mathematical Formula

Multiplier (g/kg) × Weight (kg)

Behind the Math

The RDA of 0.8g/kg was established decades ago as the *minimum* to prevent deficiency. Modern sports science now recommends 1.2g to 2.2g/kg for active individuals to support tissue repair.

Expert Tip

Spread your protein intake across 4-5 meals rather than one large sitting. Your body can better utilize 40g of protein consumed 4 times a day than 160g in a single post-workout meal.

Primary Use
Health Screening
Standard
WHO Guidelines
Complexity
Clinical Grade

Frequently Asked Questions

Metric Recommendations

Macro Split Calculator

Optimize protein, fat, and carb ratios.

Lean Body Mass (LBM)

Calculate the mass of your body excluding fat.

TDEE Calculator

Total Daily Energy Expenditure based on activity.

BMR Calculator

Basal Metabolic Rate estimator using Mifflin-St Jeor.

Water Intake Calculator

Daily hydration needs based on weight and activity.

Sodium Intake Estimator

Recommended daily sodium limits.

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